▎ 摘　　要

NOVELTY - The heater has an outer wrapping layer and a heating device. The heating device is sealedly installed in the outer wrapping layer. The heating device is a heating resistance wire (4) coated with graphene thermal conductive heat dissipation paint. A graphene phase change material layer (2) is provided in the outer wrapping layer for heat storage of the outer wrapping layer. The heating resistance wire is in the form of a grid, and the surface of the heating resistance wire is coated with a graded porous graphene heat dissipation coating. USE - Smart phase change type graphene warm water bag heater. ADVANTAGE - The heater is provided with simple structure, good energy-saving effect, instant heat upon power-on, no instantaneous temperature reduction after power-off, long heat preservation time and long service life. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the smart phase change type graphene warm water bag heater. Graphene phase change material layer (2) Heat storage film (3) Heating resistance wire (4) Detachable circuit function module (5) Damp-proof film (6)